Casement fastener



Dec. 13, 1927. 1,652,548

L. wENsEL CASEMENT FASTENER Filed Feb. 25. 1926 za; 1. w

Patented Dec. 13,1927.

UNITED sTATEs VPATi-:NT OFFICE.

LOUIS WESEL; or Los CASEMENT .application filed February This invent-ioii lias to do generally with fastening` devices and is more particularly vconcerned witli fasteniersof the turn-button type. Since tlie invention is particularly well adapted for eiiibodiinent in turn buttons used for fastcning cascnieiits or sashes of windows ai'ra-nged to open on 'hinges at the side, I will describe sucli an enibodiment, but it will be understood this is not to be coiistriied as iii any way limiting the invention to such specific application.

In order that tlie nature and objcctsof the present invention may be pointed out iiiore cleai'ly, I will first discuss the construction of a usual fastenei', and then point out whereiii niy device diffei's. The iisiial fastener includes a p'ressed or cast plate having marginal flanges wliicli space it froin the window to wliich it is atiiXed. The bolt and liaiidle are cast in a single piece, there being an integi'al shank on the underside of tlie bolt, which shank extends through an aoertui'e iii the plate and then through a spring washei' below the plate. The countersunk end of the shank is spread or lieaded over to hold the several eleinents in assembly. The undei'sid'e of the bolt is lield in frictional engageiiient with the upper side Vof tlie plate, the frictional engageinent of the washer and bolt with the plate being depended upon for holding tlie bolt releasably in adjusted position. Due to the presence of the shank, it is practically impossible, except at excessive cost, to fiiiish the underside of the boltv castiiig so it has proper, even frictional engagenient with the plate and consequently it is usually found that the bolt rotates with undue ease during certain stages of its rotation, aiid binds during other stages.

Thei'efore, it is among tlie objects of the present inventioii to provide a catch which shall have none of the above iiientioned objectioiiable features, the device being generally characteried as a catch which is cheaply, and easily manufactured, requires no finishing Operations oii the several elements, is smooth in action, and is retained fi'ictionally in adjusted position, ii'respective of the position to whicli the bolt may be turned, with suificient firmness to prevent it from being rotated' by jai'ring or vibi'ation. How this is accomplished will be made apparent in the following detailed description, ,reference being had to the accompaiiyiiig drawing,y ill Which:

ANGELEs, CALIFORNIA.

rAs'rENER.

25, 1926. serial No. 90,450.

F ig. 1 is a fragment'ary elevation of a 'casenieiit sasli equipped with an embodimeiit of my invention; e

Figl is a section oii line 2 2 of 1;

Fig. 3 is a section oii line 3-3 of Fig. 2;

Fig. 4 is a perspective view of the operating handle;

Fig. 5 is a perspective view of the bolt; lFig. 6 is a perspective view of the spacing washer;

Fig. is a perspective view of the plate or supporting niember v ig. 8 is a perspective View of a spring washer; and F ig. 9 is a View similar to F ig. 2 but 'showmg a Variational form 'of spring Washer.

lii Fig 1, numei'als 10 and 11 desi'gnate a casing and casement saish, respectively, while a keeper 12, of any suitable type, is shown attached to casing 10 by screws 12a. A cast oi' pressedinetal base plate or supportingmember 13v has marginal, downturned fianges 14 whereby it is spaced from sash 11, screws 15 lpassing through the plate at 16to secure it to the sash.

Bolt 17, consisting of a tongue portion 18 and hub portion 19, is mounted on plate 13 and is adapted to be oscillated into and out of engagement with 'keepei' 12 when the casement sash is closed. Preferably; bolt 17 is stamped from Sheetv metal' thiis insuring flat, even upper and lower 'aces 20 and 21, i'espectively, and insuring that the bolt be of uniform thickness throughout, though sucha condition is not pertinent to the inventioii. i V Vhile I may fashion the Operating handle in a variety of manners, all within the scope ofmy broader claims, even to the exte'nt of making it. an integral extension of the bolt, I prefei' to make it. of a. separate stamping and integral with the shank through which connection is made to theV base plate; I will, therefore, describe thev handle and shank as being made up of a? single piece rigidly lield in assembly with the, b'oltf, but it will be understood my broader claims contemplate the making and securing of the handle and sha'nk independently, or making either integral With the bolt.

Thus, I show the Operating handle made up of a fiat stamping consist-ing of body portion 22 and a shank portion 23, thesha'nk being of rect-angular cross section and preferably, though not necessarily, being forked at its lower end 24. Downwardly facing or laterally extending shoulders 25 are forined between body port-ion 22 and shank 23.

Shank 23 pressed with force fit through a con'iplementarily shaped aperture 26 in hub 19 of bolt 17, shoulders 25 being` brought into full engagement 'with upper face 20 of the bolt. Such full engagement is assured due to the flat, even nature of the bolt face and Shoulders` as the pieces come from the punch press, though it may here be stated that it lies within the scope of my i'nvention to make these pieces of cast metal.

Plate 13 provided with a circular aperture 27 which is appreciably larger in cross section than shank 23. Shank 23 is adapted to 'extend through aperture 27, but for the purpose of providing Va proper bearing for the shank within the plate, as well. as for other purposes, I introduce a spacing and bearing` washer 28 between the lower face 2l of the bolt and the upper face of the base plate. Tasher 28 has an annular shoulder 29 adapted to have bearing engagement with the plate by extending through aperture 27, and while this shoulder may be formed on the'washer in any suitable manner, I prefer to form it by depressing the central portio'n of the washer as at 30. This leavcs only the underside of rim portion 31 of the washer in bearing engagement with plate 13; depressed portion 30 having an `aperture 32 coinplementary to and adapted to take shank 23 so the shank and washer are held against relative rotation. It follows that when handle 22 is oscillated to operate the bolt, rim portion 31,of the washer bears on and moves over the upper face of the plate, and shoulder 29 bears smoothly in aperture 27 and holds the handle and shank properly centered in said aperture. The opposed smooth, flat faces of the plate and washer 28 provide excellent bearing surfaces and therefore contribute to the smooth action of the fastener. Since the rim of the washer is interposed between plate 13 and bolt hub 19,v said washer serves to space the tongue portion of the bolt from the upper face of the plate, undue friction between bolt and plate thus being` avoided. This spacing of the plate and tongue also prevents the tongue from catching` on the plate in case the opposed surfaces have ir'regularities or if there be edge burrs on the tongue asa result of punch press Operations thereon.

Shank 23 extends through a rectangular a-perture 33 in dished or spring washer 34 which is arranged at the lower side of plate 13. The forked end 24 of the shank is spread or headed over in an obvious manner to hold the several elements in assembly and to draw washers 28 and 34 into frictional engage- .ment with opposite sides of plate 13 so the bolt is retained frictionally in adjustedpositioni lit self-evldent that since both washers 28 and 34 are non-rotatively connected to shank 23, both these washers are l'otated with the shank when handle 22 is operated, and that neither bolt nor shank bear on or engage the base plate in any way.

In F 9 I have shown a slightly different assembly beneath plate 13. A tempered steel spring washer 34 preferably has a rectangular central aperture 33a and is slipped over shank 23 with its convex face engaging the under face of plate 13. A flat washer 36, preferably of soft steel, has a. rectangular central aperture 36a to take 'shank 23 below washer 34a, and the forked end 24 is spread or headed over, as described above, to hold the elements in assembly and to draw washers 28 and 34:a into frictional engagement with the opposite sides of plate 13. Since only the high point of washer 3a'L engages plate lo, smoothness of bolt action is assured.

It will be understood the drawings and description are to be considered Inerely as illustrative of and not restrictive on the broader claims appended hereto, for various changes in design, structure and arrangement may be made without departing from the spirit and scope of said ('.lairns I claim:

1. In a fastener of the Character described, a plate having an aperture therethrough, an oscillatory bolt on the plate, a spacing washer between the bolt and plate and having an annular shoulder extending below its lower face and bearing in said plate aperture, a shank of polygonal cross-section eX- tending from the lower face of the bolt and through and below a' central aperture of complementary outline provided in said washer, and means coacting with the shank and lower face of the plate adapted to hold said plate, washer and bolt in assembly.

2. In a fastener of the Character described, a plate having an aperture therethrough, an oscillatory bolt on the plate, a spacing washer between mthe bolt and plate and haring a centrally depressed portion extending into and having bearing in said plate aperture, a shank extending from the lower face of the bolt and through and beyond an aperture provided in said depressed portion, and means on the end of the sha-nk below the plate adapted to hold the plate, washer and bolt in assenibly.V

3. In a fastener of the Character described, a plate having an aperture therethrough, an oscillatory bolt on the plate, a spacing washer between the bolt and plate and having` a centrally depressed portion extending into and having bearing in said plate aperture, a shank extending from the lower face of the bolt and through and beyond an aperture provided in said depressed portion, coacting means on the shank and washer adapted to hold them Aagainst relative rotation, and means on the end of the shank below the plate adapted to hold the plate, washer and bolt in assembly.

4. In a fastener of the Character described, a plate having an aperture therethrough, an oscillatory bolt on the plate, a spacing washer between the bolt and plate and having a centrally depi'essed portion extending into and having bearing in said plate aperture, a shank extending from the lower face of the bolt and through and beyond an aperture provided in said depressed portion, coacting means on the shank and washei' adapted to hold them against i'elative rotation, means on the end of the shank below the plate adapted to hold the plate, washer and bolt in assembly, and a washer on the shank below the plate, the end of said shankl being headed over in a inanner to hold the plate, washers and bolt in assembly and to hold the two washers in frictional engagement with opposite sides of the plate.

5. In a fastener of the Character desci'ibed, a plate having an apertui'e therethrough, an

oscillatoi'y bolt on the plate, a spacing washei' between the bolt and plate and having a-n annular shoulder extending below its lower face and bearing in said plate aperture, an Operating handle consisting of a body portion and adepending shank portion, there being a downwardly facing shoul-- dei' at the `junction of said body and shank portions, said shank poi'tion being of polygonal cross-section and being pressed With force fit through a complementarily formed apertui'e in the. bolt to bring said shoulder into engagement with the upper face of the bolt, said shank extending downwardly through a complenientarily formed aperture in the washer; and means on the end of the shank below the plate adapted to hold the plate, bolt and washer in assembly.

In witness that I claim the foregoing I have hereunto subscribed my name this 19th day of December 1925.

LOUIS WENSEL. 

